Journal of Colloid and Interface Science最新文献_第10页

Biomimetic lipid nanoparticles for RNA delivery to breast cancer microenvironment cells by enhanced homotypic and heterotypic adhesion 通过增强同型和异型粘附，用于RNA递送到乳腺癌微环境细胞的仿生脂质纳米颗粒。

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-01-24 DOI: 10.1016/j.jcis.2026.139972

Stefania Garbujo , Chiara Baioni , Andrea Banfi , Leonardo Bolis , Giulia Bonvini , Elena Del Favero , Paola Gagni , Alessandro Gori , Linda Barbieri , Marco Davide Giustra , Giulia Tomaino , Lucia Morelli , Clizia Chinello , Fulvio Magni , Lucia Salvioni , Miriam Colombo , Davide Prosperi

Lipid nanoparticles (LNPs) have emerged as a clinically validated nonviral RNA delivery system. However, their limited tumor targeting remains challenging in oncology. In this work, LNPs were functionally integrated with cancer cell membrane components to enhance their targeting capabilities. The natural composition of tumor membranes was leveraged to promote both homotypic and heterotypic adhesion, exploiting cancer cell self-recognition and interactions with stromal cells in the tumor microenvironment. A biomimetic nanocarrier was developed by cloaking RNA-loaded LNPs with nanoghosts obtained from the membrane of triple negative breast cancer cells. Nanoghosts were dye-labeled and comprehensively characterized in terms of size, surface charge, protein composition, and membrane sidedness. The functional orientation of nanoghost membrane-associated proteins mediated homotypic binding with 4 T1 cells and heterotypic recognition of functionally validated cancer-associated fibroblasts and exhibited higher affinity for the latter, as confirmed through flow cytometry and confocal microscopy. RNA-LNPs were incorporated into nanoghosts using ultrasound-assisted fusion, yielding stable biomimetic LNPs with a multilamellar mRNA-LNP core enveloped by a nanoghost shell, as confirmed by Small-Angle X-ray Scattering. While uncoated LNPs showed negligible interaction with heterotypic cells, biomimetic LNPs displayed strong affinity for cancer-associated fibroblasts, enabling efficient internalization and RNA transfection. Additionally, the biomimetic coating enhanced LNP uptake in homotypic 4 T1 cells, resulting in significantly improved biological activity compared to uncoated LNPs. This work provides proof of concept that RNA-LNPs can be effectively integrated into biomimetic carriers to enable dual targeting of tumor and stromal cells. The enhanced selectivity and delivery performance of biomimetic LNPs highlight their therapeutic potential for overcoming stromal barriers in desmoplastic tumors such as triple negative breast cancer.

脂质纳米颗粒（LNPs）已成为一种临床验证的非病毒RNA递送系统。然而，它们有限的肿瘤靶向性在肿瘤学领域仍然具有挑战性。在这项工作中，LNPs与癌细胞膜组分进行功能整合，以增强其靶向能力。利用肿瘤膜的天然成分来促进同型和异型粘附，利用癌细胞的自我识别以及与肿瘤微环境中的基质细胞的相互作用。利用从三阴性乳腺癌细胞膜中获得的纳米宿主包裹负载rna的LNPs，制备了一种仿生纳米载体。纳米宿主被染料标记，并在大小、表面电荷、蛋白质组成和膜侧性方面进行了全面表征。通过流式细胞术和共聚焦显微镜证实，纳米宿主膜相关蛋白的功能取向介导了与4 T1细胞的同型结合和功能验证的癌症相关成纤维细胞的异型识别，并对后者表现出更高的亲和力。小角度x射线散射证实，通过超声辅助融合将RNA-LNPs整合到纳米宿主中，得到了稳定的仿生LNPs，其多层mRNA-LNP核被纳米宿主壳包裹。虽然未包被LNPs与异型细胞的相互作用可以忽略不计，但仿生LNPs对癌症相关成纤维细胞表现出很强的亲和力，能够有效地内化和RNA转染。此外，与未包被LNPs相比，仿生包被增强了LNP在同型4 T1细胞中的摄取，从而显著提高了LNP的生物活性。这项工作证明了RNA-LNPs可以有效地整合到仿生载体中，从而实现肿瘤和基质细胞的双重靶向。仿生LNPs增强的选择性和递送性能突出了它们在克服间质屏障治疗结丝增生肿瘤（如三阴性乳腺癌）方面的潜力。

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引用次数: 0

Bioinspired tough, anti-freezing, and anti-drying organohydrogel via photocurable 3D printing for flexible electronics 生物灵感坚韧，防冻，防干燥的有机水凝胶通过光固化3D打印柔性电子产品

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-01-24 DOI: 10.1016/j.jcis.2026.139976

Hanqiang Zhang , Peiren Wang , Zhenning Di , Xin Zhou , Haibo Ding , Zhonglin Xu , Yupeng Xu , Lize Cai , Jiqing Chen , Zihuan Chen , Hua Xu , Ji Li

Conductive hydrogels hold great potential for applications in flexible electronics due to their excellent flexibility and conductivity. However, hydrogels typically have poor mechanical properties and are prone to freezing and drying under extreme conditions, while a lack of shaping approaches severely restricts their capacity to form complex geometries and customized functionalities for high-performance devices. Herein, inspired by the synergistic mechanisms observed in arctic brown algae, we propose a novel strategy integrating ionic crosslinking, ion hydration, and hydrogen bonding networks for one-step photocurable 3D printing of organohydrogels. The bioinspired design of the organohydrogel provides remarkable tensile strength (4.65 MPa), excellent transparency (97%), high ionic conductivity (0.34 S/m), and ultrawide temperature tolerance (down to −50 °C), and is enabled by the synergistic mechanism to achieve rapid 3D printing (<2 s/100 μm). The 3D-printed organohydrogel is capable of versatile sensing platform of stress, motion, respiration, and temperature with exceptional adaptability. Customized cryo-tolerant sensors enable encrypted Morse code communication via strain-responsive signals at −50 °C. Utilizing inherent triboelectric and piezoresistive properties, we developed smart insoles with spatial pressure mapping for real-time gait and posture monitoring. This work lays the foundation for advanced human-machine interactions, soft robotics, customizable flexible electronics, and health monitors for applications in extreme environments.

导电性水凝胶由于其优异的柔韧性和导电性，在柔性电子领域具有很大的应用潜力。然而，水凝胶通常具有较差的机械性能，并且在极端条件下容易冻结和干燥，而缺乏成型方法严重限制了其形成复杂几何形状和高性能设备定制功能的能力。在此，受在北极褐藻中观察到的协同机制的启发，我们提出了一种结合离子交联、离子水化和氢键网络的新策略，用于一步光固化有机水凝胶的3D打印。仿生设计的有机水凝胶具有卓越的抗拉强度（4.65 MPa）、优异的透明度（97%）、高离子电导率（0.34 S/m）和超宽的耐温性（低至- 50°C），并通过协同机制实现快速3D打印（<2 S/ 100 μm）。3d打印的有机水凝胶具有应力、运动、呼吸和温度的多功能传感平台，具有特殊的适应性。定制的耐寒传感器可以在- 50°C下通过应变响应信号加密莫尔斯电码通信。利用固有的摩擦电和压阻特性，我们开发了具有空间压力映射的智能鞋垫，用于实时监测步态和姿势。这项工作为先进的人机交互、软机器人、可定制的柔性电子设备和用于极端环境应用的健康监视器奠定了基础。

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引用次数: 0

Water-stable Bi-based perovskite for efficient photocatalytic hydrogen evolution in aqueous media 水稳定铋基钙钛矿在水介质中高效光催化析氢

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-01-24 DOI: 10.1016/j.jcis.2026.139975

Chun Sun , Jiazhi Cui , Zhengtao Qiu , Jiabao Bai , Chao Fan , Dan Huang , Guohua Jia

Perovskites have attracted considerable interest as potential photocatalysts for sustainable hydrogen generation. Nonetheless, their intrinsic instability in aqueous media significantly constrains their practical deployment in photocatalytic hydrogen evolution. To address this challenge, we propose a versatile strategy for stabilizing Cs₃Bi₂Br₉ (CBB) perovskite photocatalysts through combining zwitterionic ligand encapsulation with Sn⁴⁺ doping. The zwitterionic ligand, synthesized by reacting 4-bromobutyric acid (BBA) with oleylamine (OLA), was employed to passivate the perovskite surface by anchoring to both Bi³⁺ and Br⁻ sites, effectively mitigating surface defects. Notably, Sn⁴⁺ doping is essential for aqueous stability, as the incorporation of Sn⁴⁺ not only enhances the intrinsic stability of CBB but also reinforces the binding affinity of surface ligands. As a result, the Sn⁴⁺-doped CBB (CBBS_x) with ligand encapsulation demonstrates remarkable stability, retaining its structural integrity in water for over six months and withstanding more than three cycles of photocatalytic testing. Importantly, this strategy demonstrates considerable generality, as it can be readily extended to the synthesis of other halide perovskites. Specifically, the MoS_x-loaded Sn⁴⁺:Cs₃Bi₂Br_xI_9-x (MoS_x/CBBIS_0.2) composite achieves a remarkable hydrogen evolution rate of 18.2 mmol h⁻¹ g⁻¹, which represents the highest performance reported to date among Bi-based perovskite photocatalysts.

钙钛矿作为可持续制氢的潜在光催化剂引起了人们的极大兴趣。然而，它们在水介质中的固有不稳定性极大地限制了它们在光催化析氢中的实际应用。为了解决这一挑战，我们提出了一种稳定Cs3Bi2Br9 （CBB）钙钛矿光催化剂的通用策略，即将两性离子配体包封与Sn4+掺杂相结合。由4-溴丁酸（BBA）与油胺（OLA）反应合成的阴离子配体通过锚定在Bi3+和Br -位点上来钝化钙钛矿表面，有效地减轻了表面缺陷。值得注意的是，Sn4+的掺杂对CBB的水稳定性至关重要，因为Sn4+的掺入不仅增强了CBB的固有稳定性，而且增强了表面配体的结合亲和力。结果表明，配体包封的Sn4+掺杂CBB （CBBSx）表现出显著的稳定性，在水中保持其结构完整性超过6个月，并经受了超过3次的光催化测试循环。重要的是，这种策略显示出相当大的普遍性，因为它可以很容易地扩展到其他卤化物钙钛矿的合成。具体而言，负载MoSx的Sn4+:Cs3Bi2BrxI9-x （MoSx/CBBIS0.2）复合材料的析氢速率为18.2 mmol h−1 g−1，是迄今为止报道的铋基钙钛矿光催化剂中性能最高的。

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引用次数: 0

Modulating mRNA carrier efficacy through the molecular catwalk of ionizable nitrogens in lipidic domains 通过脂质结构域中可电离氮的分子通道调节mRNA载体效能。

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-01-24 DOI: 10.1016/j.jcis.2026.139973

Melina Grau , Nora Martini , Sophie Thalmayr , Miriam Höhn , Olivia M. Merkel , Benjamin Winkeljann , Ernst Wagner

Double pH-responsive lipo-xenopeptides (lipo-XPs) with varying lipo amino fatty acid (LAF) to succinoyl tetraethylene pentamine (Stp) ratios and two distinct bundle and U-shape topologies were identified as highly effective carriers for mRNA delivery. Physicochemical properties and transfection efficacies of the carriers are strongly influenced by the lipid tail length and position of the ionizable nitrogen within the LAF domain, defined as the “molecular catwalk”. Bundles containing short LAFs (8Oc, 12Bu) and U-shapes with medium-length LAFs (12Oc) and centrally placed tertiary amines exhibited strongest activity, while extreme catwalk variants (2Hd, 16Et) proved ineffective. These trends establish clear structure-activity relationships which were subjected to further mechanistic investigation. Mechanistic studies revealed topology- and LAF-specific differences in requirement for endosomal acidification and corresponding escape, indicating that different molecular arrangements trigger distinct biological mechanisms. All-atom molecular dynamics simulations at the water-octanol interface further contextualized these behaviors by resolving how protonation reshapes carrier polarity, hydration and interfacial localization. Protonation-induced relocation was more pronounced in bundles, consistent with their higher LAF content, whereas 12Oc-based U-shapes displayed more moderate shifts and retained greater octanol affinity at neutral pH. Variations in nitrogen placement modulated interfacial enrichment and hydrogen bonding, providing molecular comprehension for the experimentally observed activity profiles across the LAF-Stp carrier library.

具有不同脂质氨基酸（LAF）与琥珀酰四乙烯五胺（Stp）比率的双ph响应型脂质外肽（脂质xps）和两种不同的束状和u形拓扑结构被确定为mRNA递送的高效载体。载体的物理化学性质和转染效率受到脂质尾长度和LAF结构域内可电离氮的位置的强烈影响，这被定义为“分子天桥”。含有短LAFs （8Oc, 12Bu）和u型中长度LAFs （12Oc）和中心放置叔胺的束表现出最强的活性，而极端的t型变体（2Hd, 16Et）被证明无效。这些趋势建立了明确的结构-活性关系，有待进一步的机理研究。机制研究揭示了拓扑和af特异性对内体酸化和相应逃逸的需求存在差异，表明不同的分子排列触发不同的生物学机制。水-辛醇界面的全原子分子动力学模拟通过解析质子化如何重塑载流子极性、水合作用和界面定位，进一步将这些行为置于背景中。质子诱导的重定位在束中更为明显，这与LAF含量较高一致，而基于12oc的u形表现出更温和的位移，在中性ph下保持更大的正醇亲和力。氮放置的变化调节了界面富集和氢键，为实验观察到的LAF- stp载体库的活性谱提供了分子理解。

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引用次数: 0

Surface hydroxyl groups steer the degradation pathway for high-efficiency mineralization of toluene on BiOClBr: mechanistic insights from combined experimental and DFT studies 表面羟基引导降解途径，使甲苯在BiOClBr上高效矿化：来自实验和DFT联合研究的机制见解

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-01-24 DOI: 10.1016/j.jcis.2026.139974

Yang Li , Yiwen Zeng, Guanghua Cai, Xiaofei Li, Jian Yang, Ximei Fan

Toluene, a typical volatile organic compound (VOC), poses significant challenges in photocatalytic degradation due to low mineralization efficiency and the accumulation of hazardous intermediates. Here, we demonstrate that surface hydroxyls on BiOClBr solid solutions act as a molecular switch to steer the degradation pathway toward complete mineralization with high selectivity. Experimental results reveal that hydroxyl-rich BiOClBr samples, synthesized via a modified solvothermal method, exhibit a strengthened built-in electric field, enhanced charge separation efficiency, and facilitated generation of reactive oxygen species (ROS) such as ·O₂⁻ and ·OH compared to hydroxyl-deficient counterparts. In situ spectroscopic analysis combined with density functional theory (DFT) calculations indicate that surface hydroxyls introduce additional electron states, facilitating charge transfer and promoting the adsorption and activation of toluene at the methyl group. This pathway sequentially converts toluene to benzyl alcohol, benzaldehyde, and benzoic acid, ultimately leading to complete mineralization into CO₂ while suppressing the formation of phenolic byproducts. This work provides mechanistic insights into surface hydroxyl-mediated charge dynamics and ROS balance, offering a strategic foundation for designing tailored catalysts for efficient aromatic VOC remediation.

甲苯是一种典型的挥发性有机化合物（VOC），由于矿化效率低和有害中间体的积累，给光催化降解带来了很大的挑战。在这里，我们证明了生物clbr固溶体上的表面羟基作为一个分子开关，以高选择性地引导降解途径走向完全矿化。实验结果表明，与缺乏羟基的样品相比，通过改进的溶剂热法合成的富含羟基的BiOClBr样品具有增强的内置电场，增强的电荷分离效率，并且促进了活性氧（ROS）的生成，如·O2−和·OH。原位光谱分析结合密度泛函理论（DFT）计算表明，表面羟基引入了额外的电子态，促进了电荷转移，促进了甲苯在甲基上的吸附和活化。该途径依次将甲苯转化为苯甲醇、苯甲醛和苯甲酸，最终完全矿化为CO2，同时抑制酚类副产物的形成。这项工作为表面羟基介导的电荷动力学和ROS平衡提供了机制见解，为设计适合芳香性VOC的高效修复催化剂提供了战略基础。

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引用次数: 0

Viscosity and dynamic surface tension measurement: A guideline for appropriate measurement 粘度和动态表面张力测量：适当测量的指南。

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-01-23 DOI: 10.1016/j.jcis.2026.139929

Vivek Kumar , JSM Quintero , Aleksey Baldygin , Paul Molina , Thomas Willers , Prashant R. Waghmare

Dynamic surface tension measurements play a critical role in interfacial activities for liquids with varying viscosities. Understanding the rate at which the interface attains the equilibrium, for surface tension measurements, after the formation of a new interface is of significant interest. Although surface tension is independent of dynamic viscosity, the time required for a new surface to form (equilibrium/relaxation time) is influenced by viscosity. The measured surface tension value is accurate only once these viscous effects have subsided. Therefore, the relaxation time represents the minimum surface age value achievable during the measurement process. We experimentally established the minimum surface age needed to measure the dynamic and static surface tension of a fluid with a specific viscosity using three widely used methods: the Pendant drop method, the Wilhelmy plate method, and the Bubble pressure method. We propose a guideline with a phase plot that helps to choose the most suitable method and the youngest achievable surface age for an accurate measurement, independent of viscous effects. This guideline enables users in diverse applications such as 3D printed clothing, spray paint, coating, etc., to accurately measure dynamic and static surface tension without being influenced by viscosity effects.

动态表面张力测量对不同粘度液体的界面活性起着至关重要的作用。了解界面在形成新界面后达到平衡的速率，对于表面张力测量具有重要意义。虽然表面张力与动态粘度无关，但形成新表面所需的时间（平衡/松弛时间）受到粘度的影响。只有当这些粘性效应消退时，测量的表面张力值才准确。因此，松弛时间代表了测量过程中可以达到的最小表面年龄值。我们通过实验建立了测量具有特定粘度的流体的动态和静态表面张力所需的最小表面年龄，使用了三种广泛使用的方法：Pendant drop法、Wilhelmy plate法和Bubble pressure法。我们提出了一个相图的指导方针，有助于选择最合适的方法和最年轻的表面年龄，以进行准确的测量，独立于粘性效应。该指南使用户能够在3D打印服装，喷漆，涂层等不同应用中准确测量动态和静态表面张力，而不受粘度效应的影响。

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引用次数: 0

Rare-earth-mediated electronic engineering in high entropy alloy catalysts for enhanced performance in rechargeable zinc–air batteries 稀土介导的电子工程高熵合金催化剂用于提高可充电锌空气电池的性能

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-01-23 DOI: 10.1016/j.jcis.2026.139917

Yi Chen , Zhen Tan , Huile Jin , Yan Jiao , Jun Li , Shun Wang

The development of rechargeable zinc–air batteries (ZABs) is fundamentally constrained by the sluggish kinetics of the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), which govern the discharge and charge processes, respectively. Although high-entropy alloys (HEAs) offer tunable electronic structures and multi-metal synergy, precisely controlling the adsorption strength of oxygenated species to achieve superior bifunctional activity remains challenging when limited to conventional 3d transition metals. Herein, we report a melamine-assisted pyrolysis strategy to synthesize a series of rare-earth (RE = Ce, Gd, La) integrated FeCoNiMn high-entropy alloy nanoparticles encapsulated within N-doped carbon nanotubes. Among these, the FeCoNiMnCe@NCNTs catalyst demonstrates exceptional bifunctional performance with a half-wave potential of 0.853 V for ORR and an overpotential of 273 mV at 10 mA cm⁻² for OER, yielding a small potential gap (ΔE = 0.65 V). Experimental and theoretical analyses reveal that Ce integration induces favorable electronic structure modulation and enhanced orbital hybridization, which collectively optimize the adsorption free energy of oxygen intermediates and lower the energy barrier of the potential-determining step for both reactions. When applied as an air cathode in ZAB, the catalyst enables a high power density of 188.7 mW cm⁻² and remarkable long-term charge-discharge stability exceeding 325 h. This work highlights the potential of RE-tuned HEAs as robust and efficient bifunctional electrocatalysts for next-generation energy conversion systems.

氧还原反应（ORR）和析氧反应（OER）的缓慢动力学从根本上制约了可充电锌空气电池（ZABs）的发展，而氧还原反应（ORR）和析氧反应（OER）分别控制着电池的放电和充电过程。虽然高熵合金（HEAs）具有可调谐的电子结构和多金属协同作用，但当限于传统的3d过渡金属时，精确控制含氧物质的吸附强度以实现优越的双功能活性仍然是一项挑战。在此，我们报道了一种三聚氰胺辅助热解策略，合成了一系列稀土（RE = Ce, Gd, La）集成FeCoNiMn高熵合金纳米颗粒，这些纳米颗粒被包裹在n掺杂的碳纳米管中。其中，FeCoNiMnCe@NCNTs催化剂表现出优异的双功能性能，ORR的半波电位为0.853 V， OER在10 mA cm−2时的过电位为273 mV，产生很小的电位间隙（ΔE = 0.65 V）。实验和理论分析表明，Ce集成诱导了有利的电子结构调制和增强的轨道杂化，共同优化了氧中间体的吸附自由能，降低了两个反应的势垒。当用作ZAB的空气阴极时，该催化剂具有188.7 mW cm - 2的高功率密度和超过325小时的长期充放电稳定性。这项工作突出了re -调谐HEAs作为下一代能量转换系统中强大而高效的双功能电催化剂的潜力。

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引用次数: 0

Corrigendum to “Self-oxygenating nanoplatform integrating CRISPR/Cas9 gene editing and immune activation for highly efficient photodynamic therapy” [J. Colloid Interface Sci. 693 (2025) 137632] 整合CRISPR/Cas9基因编辑和免疫激活的自氧纳米平台用于高效光动力治疗[J]。胶体界面科学。693 (2025)137632]

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-01-23 DOI: 10.1016/j.jcis.2026.139906

Shi-Cheng Tian , Xun-Huan Song , Ke-Ke Feng , Cheng-Lei Li , Yi-Fan Tu , Yong-Shan Hu , Jing-Wei Shao

引用次数: 0

Tailoring the structure of MIL-101(Fe) for co-delivery of anti-inflammatory therapeutic agents 调整MIL-101（Fe）的结构，以共同递送抗炎治疗剂

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-01-23 DOI: 10.1016/j.jcis.2026.139968

Aleksandra Galarda , Alicja Warowicka , Aleksander Ejsmont , Joanna Goscianska

Treating inflammation often requires the combined use of multiple agents due to the complexity of biological pathways. Metal–organic frameworks (MOFs), with adjustable structures and high loading capacities, offer a promising route for dual-drug delivery. However, designing MOF-based systems that can simultaneously incorporate and release two distinct anti-inflammatory compounds remains a challenge. In this study, MIL-101(Fe) materials were synthesized under varying temperatures and solvent volumes to tailor their physicochemical properties. Higher synthesis temperatures promoted the formation of more crystalline, microporous structures with well-defined octahedral particles, whereas lower temperatures favored defect-rich, less ordered frameworks. These structural features governed adsorption and enabled controlled release of naproxen sodium and curcumin, selected for complementary action mechanisms. Material synthesized at 110 °C with doubled solvent volumes displayed the most favorable porosity, V_micro/V_total = 0.5, and uniform morphology, achieving high co-adsorption capacity (468 mg/g for naproxen sodium, 160 mg/g for curcumin) along with sustained release (92% and 60% within 24 h at pH 6.8, respectively). Biological evaluation demonstrated that all systems suppressed the synthesis of inflammatory markers, including prostaglandins and IL-6. Notably, the hierarchically porous MIL-101(Fe) synthesized at 110 °C with a higher solvent volume exhibited the strongest COX-1 inhibition (38%), whereas the predominantly mesoporous sample obtained at 110 °C with the standard solvent volume showed greater COX-2 suppression (53%). Low cytotoxicity was observed at 200 μg/mL of the therapeutic agents-loaded carriers, with cell viability remaining over 90%. These findings highlight the potential of MIL-101(Fe) as a tunable carrier for synergistic anti-inflammatory substance delivery.

由于生物途径的复杂性，治疗炎症往往需要多种药物的联合使用。金属有机骨架（MOFs）具有结构可调和高负载能力，是一种很有前景的双药递送途径。然而，设计基于mof的系统能够同时结合和释放两种不同的抗炎化合物仍然是一个挑战。在本研究中，我们在不同的温度和溶剂体积下合成了MIL-101（Fe）材料，以调整其物理化学性质。较高的合成温度有利于形成更结晶的微孔结构，具有明确的八面体颗粒，而较低的合成温度有利于形成富含缺陷的、不太有序的框架。这些结构特征控制了萘普生钠和姜黄素的吸附和控制释放，选择了互补的作用机制。在110℃条件下，双溶剂体积条件下合成的材料孔隙度最佳，Vmicro/Vtotal = 0.5，形貌均匀，共吸附量高（萘普生钠为468 mg/g，姜黄素为160 mg/g），且在pH 6.8条件下24 h内缓释率分别为92%和60%。生物学评价表明，所有系统都抑制炎症标志物的合成，包括前列腺素和IL-6。值得注意的是，在110°C和较高溶剂体积下合成的分层多孔MIL-101（Fe）具有最强的COX-1抑制作用（38%），而在110°C和标准溶剂体积下获得的主要为介孔的样品具有更强的COX-2抑制作用（53%）。在载药浓度为200 μg/mL时，细胞毒性较低，细胞存活率保持在90%以上。这些发现突出了MIL-101（Fe）作为协同抗炎物质递送的可调载体的潜力。

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引用次数: 0

Magneto-plasmonic polymer hybrid microparticles with tunable morphology and integrated property 具有可调形貌和综合性能的磁等离子体聚合物杂化微粒子

IF 9.7 1区化学 Q1 CHEMISTRY, PHYSICAL

Journal of Colloid and Interface Science

Pub Date : 2026-01-23 DOI: 10.1016/j.jcis.2026.139969

Mengmeng Zhang , Zaiyan Hou , Guoqiang Han , Min Ren , Jing Jin , Jintao Zhu , Wei Jiang , Jiangping Xu

Magneto-plasmonic hybrid microparticles composed of binary nanoparticles (NPs) provide an effective platform for integrating distinct physical properties into a single colloidal entity. Here, we report a facile emulsion–confined co–assembly strategy to construct gold–magnetite (Au–Fe₃O₄) hybrid microparticles with tunable morphologies by manipulating the molecular weight (MW) of polystyrene (PS) ligands and the properties of the surfactant. When the PS ligand on Au NPs is short (2 kDa), the morphology is strongly governed by surfactant charge, resulting in a transition from Janus to Fe₃O₄-core/Au-shell (Fe₃O₄-in-Au) structures as the surfactant changes from cationic to anionic. Increasing the PS MW induces a morphology shift toward Au-core/Fe₃O₄-shell (Au-in-Fe₃O₄) structures, irrespective of the surfactant type. Furthermore, these binary hybrid microparticles exhibited shape-dependent behavior in both optical absorption and T₂-weighted magnetic resonance imaging (MRI) performance. This shape-dependent control provides an alternative route for designing multifunctional magneto-plasmonic colloids.

由二元纳米粒子（NPs）组成的磁等离子体杂化微粒子为将不同的物理性质整合到单个胶体实体中提供了有效的平台。在这里，我们报道了一种简单的乳液约束共组装策略，通过操纵聚苯乙烯（PS）配体的分子量（MW）和表面活性剂的性质来构建具有可调形貌的金-磁铁矿（Au-Fe3O4）杂化微粒子。当Au NPs上的PS配体长度较短（2 kDa）时，表面活性剂的电荷对其形貌有强烈的影响，导致表面活性剂由阳离子变为阴离子，从Janus结构转变为Fe₃O₄-核/Au壳（Fe3O4-in-Au）结构。无论表面活性剂类型如何，增加PS MW都可以诱导形貌向au核/ fe3o4 -壳（Au-in-Fe₃O₄）结构转变。此外，这些二元杂化微粒在光学吸收和t2加权磁共振成像（MRI）性能上都表现出形状依赖行为。这种形状相关的控制为设计多功能磁等离子体胶体提供了另一种途径。

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引用次数: 0